Liquid dispenser



Feb- 13, 1934 w. M. SAMPLE nerr AL LIQUID DISPENSER Filed April 7. 19332 Sheets-Sheet l Feb. 13, w. M SAMPLE ET AL LIQUID DISPENSER Filed April7, 1933 2 Sheecs-Sheeil 2 Patented Feb. 13, 1934 UNITED STATES PATENTOFFICE LIQUID DISPENSER Application April 7, 1933. Serial No. 664,978

7 Claims.

This invention relates to certain new and useful improvements in liquiddispensers.

The primary object of the invention is to provide a dispenser forliquids such as hand f: lotions, soaps, hair tonics or any form ofliquid desired and is of the general type comprising an invertedreceptacle or bottle that may comprise the original container of theliquid to be associated with the manually operable dispensing 'imechanism.

A further object of the invention is to provide a liquid dispenserwherein the dispensing mechanism is regulable for controlling thequantity of liquid to be dispensed at each operation of 'i the device.

A still further object of the invention is to provide a liquid dispenserof the foregoing character wherein the liquid is dispensed through atubular plunger rod and with all of the dispensing mechanism carried bythe bottle or jar closure cap and further embodying means to prevent acontinuous flow or discharge of the liquid when the dispensing apparatusis being operated for the discharge of a predetermined quantity of theWith the above and other objects in View that will become apparent asthe nature of the invention is better understood, the same consists inthe novel form, combination and arrangement j of parts hereinafter morefully described, shown in the accompanying drawings and claimed.

In the drawingszy Figure 1 is a vertical sectional view of the inverteddispensing container or bottle and closure i; cap with the dispensingmechanism illustrated in elevation, carried by the closure cap andextending into the bottle;

Figure 2 is a bottom plan view of the assembled bottle and dispensingmechanism;

Figure 3 is a vertical cross-sectional view taken on line 3-3 of Figure1 showing the dispensing mechanism in its shut off or closed positionunder iniiuence of a spring device;

Figure 4 is a cross sectional view similar to jFigure 3 showing thedispensing mechanism in its open position to receive a charge of theliquid to be dispensed;

Figure 5 is a horizontal sectional view taken on line 5-5 of Figure 4;

Figure 6 is a side elevational view of the piston'or plunger device ofthe dispensing mechamsm;

4Figure 7 is a fragmentary sectional view of another form of dispensingapparatus conistructed to prevent afcontnuous discharge of liquid from abottle when the dispensing apparatus is being operated for the dischargeof a predetermined quantity, the dispensing apparatusl being illustratedas in its extended liquid discharged position;

Figure 8 is a sectional View similar to Figure 7 with the dispensingapparatus operated to per-- mit the ow of liquid from the bottle into arestricted area for discharge;

Figure 9 is a detail sectional view, similar to 65 Figure 8 showing thetensioned dispensing device partially released from its retractedposition to provide a closure for the restricted discharge area;

Figure 10 is a detail sectional view taken on 70@ line 10-10 of Figure7; and

Figure 11 is an upper end elevational view of the dispensing device.

Referring more in detail to the accompanying drawings, there isillustrated a liquid dispenser in the form of a liquid container orbottle l0 provided With a threaded neck to receive the closure cap 11that carries the dispensingmechanism illustrated as extending upwardlyinto the bottle 10 with the part of the dispensing operating 80..mechanism to be manually operated extending below the closure cap 11.The bottle 10 is to be supported in an inverted position in anypreferred manner such as by means of a bracket strap 12 illustrated inFigure 3 or if desired, the dispens- 85 ing bottle 10 may normallyassume an upright position, resting upon its bottom 10a and be invertedfor use.

The dispensing mechanism comprises an elonf' gated tube or cylinder 13having one end thereof 90.., seated axially as at 14 in the closure cap11, the latter being provided with a ring gasket 15 surrounding thecylinder 13 for engagement with the edge of the bottle neck to form asealed connection between the bottle and closure cap. A piston 16 isslidably mounted in the cylinder 13 and is y.adapted to be operated by atubular plunger rod 17, one end of which is anchored as at 18 in theDStOn 16 while the other open end ofthe tubular 'plunger rod 17 extendsaxially ,00 through the closure cap 11 and carries upon its outer end apressure button 19. The tubular plunger rod -1'7 is of less diameterthan the cyl inder 13 and the space therebetween within the area oi theclosure cap 11 is filled with packing 105 material 20. A coil spring 21is confined within the cylinder 13 with one end engaged withfthe, innerend of the piston 16 while its other eng, abuts the cross-pin 22 carriedby the cylinder;

13 adjacent its outer er1d- Y; H6

To limit downward movement of the piston 16 under iniiuence oi thespring 21 and to regulate the quantity of liquid to be dispensed fromthe bottle 10 during each reciprocatory movement of the piston 16 bymeans of the tubular plunger rod 17 there is provided an apertured plug23 anchored within the cylinder 13 at the desired point between thepiston 16 and the packing 20, it being understood that the packingoccupies the entire area between the cylinder and plunger rod and theplug 23. The piston 16 is illustrated in Figure 3 as being at its limitof downward movement and the cylinder 13 is provided with diametricallyopposite openings 24 above the piston 16 and in proximity of its-fullylowered position to permit the liquid contents of the bottle 10 to flowthrough the openings 24 into the cylinder 13 to be discharged throughthe tubular plunger rod 17 when the piston 16 has been raised againstthe tension of the spring 21 as shown in Figure 4. For communicationbetween the area 13a within the cylinder 13 when the piston 16 is raisedand the tubular plunger rod 17, there is provided openings 17a in thetubular plunger rod adjacent the base of the plunger 16.

The dispensing mechanism is illustrated in Figure 3 in its closedposition, the piston 16 constituting a valve closure for the cylinderopenings 24. The relative sizes of the openings 24 in the cylinder 13and the openings 17a in the tubular plunger rod 17 may be varied for usewith different characters of liquids, either heavy or light, so that thesame may readily low into the tubular plunger rod 17. To operate thedevice, as-

suming the bottle 16 to be supported in an inverted condition upon thebracket strap 12 as shown in Figure 3, the tubular plunger rod 17 ismoved upwardly to position the piston 16 above the cylinder openings 24against the tension of the spring 2l as shown in Figure 4 and at whichtime the liquid contents of the bottle 10 flow through the openings 24in the cylinder 13 to enter the compartment 13a in the cylinder and toiiow therefrom through the openings 17a into the tubular plunger rod 17for discharge through l the lower open end of the plunger rod. Whenpressure upon the plunger rod 17 is relieved, the spring 21 exertspressure upon the-piston 16 to move the same downwardly in the cylinder13 for closing the openings 24 and to force the contents in the chamber13a into and through the tubular plunger rod. The quantity oi liquid tobe dispensed at each operation of the device is regulable by the variedmounting of the plug 23 in the cylinder 13 which varies the area of thechamber 13a.

In the form of invention illustrated in Figures 7 to 11, the liquiddispenser comprises the bottle or jar 30 provided with a threaded neckto receive the screw cap 31. The dispensing apparatus is carried by thebottle cap 31 and includes the cylinder 32 having a packed connection atone end with the cap 31, with the other end thereof that extends intothe bottle 30 closed by a disk 33 provided with a circular series ofopenings 34, the disk 33 carrying an inwardly directed axial pin 35,terminating at a point intermediate the ends of the cylinder 32. Aplunger 36 is reciprocably mounted within the cylinder 32 and isprovided with an axial bore that is surrounded on tHe side facing thecylinder disk 33 by the tubular guide`37 that receives the pin 35carried by the end disk 33. The pin 35 and tubular guide 37 aresurrounded by a coil spring 38 having abut- 'L ting engagement with theplunger or piston 36 the inner end of the cap 31 with the tubularplunger rod 39 slidably projecting therethrough and said plug 42 has acavity 43 provided in its upper face for purposes presently to appear.The cylinder 32 is circumferentially slotted as at 44 upon diametricallyopposite sides thereof and the tubular plunger rod 39 is provided withdiametrically opposite openings 45 therein adjacent the lower face ofthe plunger or piston 36.

When the piston 36 is in its lowered position as illustrated in Figure7, the same is disposed below the openings 44 in the cylinder 32, whilethe pin 35 depending `from the upper end disk 33 forms a closure for theupper end of the tubular guide 37 100 carried by the piston 36 with theresult that the liquid contents within the bottle 30 are confinedagainst discharge. The liquid contents in the bottle 30 are dischargedin predetermined quantities and to effect such discharge, pressure isexerted upwardly upon the button 41 at the lower end of the tubularplunger rod 39 for moving the piston 36 upwardly in the cylinder 32 intothe positionshown in Figure 8 and at which time the liquid contents ofthe bottle 30 iiow into the restricted 110 area 32a of the cylinder 32by way of the side opening 44, entry of the liquid into the tubularplunger rod 39 by way of the openings 45 being prevented by the presenceof the pin 35 extending across said openings. When pressure is relievedon the plunger rod 39, the spring 38 effects lowering movement of thepiston 36 for closing the openings 44 in the cylinder 32 substantiallyat the moment that the lower edges of the openings 45 in the tubularplunger rod 39 pass below the lower end of the pin 35 so that the liquidconned within the restricted area 32a is forced by the piston 36 asshown in Figure 9 from the restricted area or compartment 32a throughthe openings 45 into the tubular plunger rod 39, the entire liquidcontents in the restricted area 32 being ultimately discharged throughthe tubular plunger rod while the inclined upper face 43 of the plug 42permits drainage of the liquid remaining in the area 32a after thepiston has reached its limit of 130 lower movement through the openings45 in the tubular plunger rod. The openings 34 in the disk 33 permit thedischarge of liquid contents conned within the upper end of the cylinder32 during upward movement of the piston 36. 135 It will be noted thatwhen the piston 36 is at its limit of upward movement, 'the escape ofliquid' from the bottle 10 is prevented, so that it is impossible tohave the liquid contents of the bottle continuously flow therefromduring operation of 146 the dispensing mechanism.

While there are herein shown and described the preferred embodiment ofthe invention, it is nevertheless to be understood that minor changesmay be made therein without departing from `the 145 spirit and'scope ofthe invention as claimed.

1. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder,hav- 15C,

ing side openings therein, a regulable piston abutment in the cylinderinwardly of the openings, a tensioned piston in the cylinderconstituting a valve closure for the openings when en-4 gaged with theabutment and a tubular plunger rod carried by the piston, extendingthrough the closure cap and having openings therein formingcommunication between the cylinder inwardly of the piston and theinterior of the plunger rod.

2. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder,having side openings therein, a regulable piston abutment in thecylinder inwardly of the openings, a tensioned piston in the cylinderconstituting a valve closure for the openings when engaged with theabutment and a tubular plunger rod carried by the piston, extendingthrough the closure cap and having openings therein formingcommunication between the cylinder inwardly of the piston and theinterior of the plunger rod, and the inner end of the cylinder beinganchored in the closure cap.

3. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder,having side openings therein, a regulable piston abutment in thecylinder inwardly of the openings, a tensioned piston in the cylinderconstituting a valve closure for the openings when engaged with theabutment and a tubular plunger rod carried by the piston, extendingthrough the closure cap and having openings therein formingcommunication between the cylinder inwardly of the piston and theinterior of the plunger rod, the piston abutment being secured to thecylinder and the plunger rod passing through the abutment.

4. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder,having side openings therein, a regulable piston abutment in thecylinder inwardly of the openings, a tensioned piston in the cylinderconstituting a valve closure for the openings when engaged with theabutment and a tubular plunger rod carried by the piston, extendingthrough the closure cap and having openings therein formingcommunication between the cylinder inwardly of the piston and theinterior of the plunger rod, and the inner end of the cylinder beinganchored in the closure cap, the piston abutment being secured to thecylinder and the plunger rod passing through the abutment.

5. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder, apiston therein, a tubular plunger rod carried by the piston and slidablethrough the cap, said cylinder having openings therein for the passageof the liquid contents of the container and normally closed by thepiston, and said plunger rod having openings for the passage of .liquidin the cylinder, and means for closing the openings in the plunger rodwhen the piston is moved to permit passage of liquid through thecylinder openings.

6. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder, apiston therein, a tubular plunger rod carried by the piston and slidablethrough the cap, said cylinder having openings therein for the passageof the liquid contents of the container and normally closed by thepiston, and said plunger rod having openings for the passage of liquidin the cylinder, and means carried by the cylinder to close the plungerrod openings when the piston is moved to permit passage of liquidthrough the cylinder openings.

7. In a liquid dispenser, a liquid container, a closure cap therefor,and dispensing mechanism carried by the cap and including a cylinder, apiston therein, a tubular plunger rod carried by the piston and slidablethrough the cap, said cylinder having openings therein for the passageof the liquid contents of the container and normally closed by thepiston, and said plunger rod having openings for the passage of liquidin the cylinder, a tubular guide rising from the piston, a pin dependingfrom the upper end of the cylinder and adapted to be received in thetubular plunger rod for closing the opening therein when ik,

the piston is moved to permit passage of liquid, through the cylinderopenings.

WARREN M. SAMPLE. OTHO O. LANGDON.

